From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: "Ralf Wildenhues" Newsgroups: gmane.emacs.bugs Subject: bug#9106: 24.0.50; ./configure causes massive recompilation Date: Wed, 20 Jul 2011 08:46:23 +0200 Message-ID: <20110720064623.40890__47293.9206440516$1311145252$gmane$org@gmx.net> References: <4E2623CA.8090805@cs.ucla.edu> <4E266E98.4010901@cs.ucla.edu> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit X-Trace: dough.gmane.org 1311145252 28168 80.91.229.12 (20 Jul 2011 07:00:52 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Wed, 20 Jul 2011 07:00:52 +0000 (UTC) Cc: 9106@debbugs.gnu.org, eggert@cs.ucla.edu, bug-gnulib@gnu.org To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Wed Jul 20 09:00:48 2011 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([140.186.70.17]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1QjQlz-0002Uu-0x for geb-bug-gnu-emacs@m.gmane.org; Wed, 20 Jul 2011 09:00:47 +0200 Original-Received: from localhost ([::1]:58382 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QjQly-0004mG-3p for geb-bug-gnu-emacs@m.gmane.org; Wed, 20 Jul 2011 03:00:46 -0400 Original-Received: from eggs.gnu.org ([140.186.70.92]:46461) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QjQYh-00034z-E3 for bug-gnu-emacs@gnu.org; Wed, 20 Jul 2011 02:47:04 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1QjQYg-0006Yn-Ih for bug-gnu-emacs@gnu.org; Wed, 20 Jul 2011 02:47:03 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:55870) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QjQYg-0006Yh-DP for bug-gnu-emacs@gnu.org; Wed, 20 Jul 2011 02:47:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.69) (envelope-from ) id 1QjQYg-0001jG-2x; Wed, 20 Jul 2011 02:47:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: "Ralf Wildenhues" Original-Sender: debbugs-submit-bounces@debbugs.gnu.org Resent-To: owner@debbugs.gnu.org Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Wed, 20 Jul 2011 06:47:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 9106 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 9106-submit@debbugs.gnu.org id=B9106.13111443946610 (code B ref 9106); Wed, 20 Jul 2011 06:47:02 +0000 Original-Received: (at 9106) by debbugs.gnu.org; 20 Jul 2011 06:46:34 +0000 Original-Received: from localhost ([127.0.0.1] helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1QjQYD-0001iZ-25 for submit@debbugs.gnu.org; Wed, 20 Jul 2011 02:46:33 -0400 Original-Received: from mailout-de.gmx.net ([213.165.64.23]) by debbugs.gnu.org with smtp (Exim 4.69) (envelope-from ) id 1QjQYB-0001iO-JM for 9106@debbugs.gnu.org; Wed, 20 Jul 2011 02:46:32 -0400 Original-Received: (qmail 32439 invoked by uid 0); 20 Jul 2011 06:46:25 -0000 Original-Received: from 77.58.247.232 by www053.gmx.net with HTTP; Wed, 20 Jul 2011 08:46:23 +0200 (CEST) In-Reply-To: X-Authenticated: #13673931 X-Flags: 0001 X-Mailer: WWW-Mail 6100 (Global Message Exchange) X-Mutt-Fcc: ~/Mail/outbox X-Mutt-References: X-Priority: 3 X-Provags-ID: V01U2FsdGVkX1/j+04D6n/jG21hbrH/AIB5bURUK3oRrNmBrAbTYs uqQwkb0ExB7I2Ko94sOVRZE+g2p1d0u5EKrg== X-GMX-UID: 2ghPIYs3MydhcpzwumplmJNjaGRhZprA X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.11 Precedence: list Resent-Date: Wed, 20 Jul 2011 02:47:02 -0400 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 3) X-Received-From: 140.186.70.43 X-Mailman-Approved-At: Wed, 20 Jul 2011 02:59:48 -0400 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:49466 Archived-At: * Eli Zaretskii wrote on Wed, Jul 20, 2011 at 08:38:24AM CEST: > > > I'm afraid this cure would be worse than the disease. > > > > I feel there's some kind of misunderstanding here, because with my > > proposal, nothing will happen that doesn't already happen. Perhaps > > you could show in more detail which Make actions would happen that > > doesn't happen now. > > Perhaps you thought that a mere "make", even without re-running > `configure', will trigger these rules. But that is not the case: as > long as config.status is not updated, these rules will not be > triggered, since unistd.h etc. will always be newer than the > corresponding *.in.h templates, due to the fact that move-if-change > _will_ overwrite them with newer versions whenever there's a real > change in the *.in.h templates. > > Am I missing something? I think you are. Once config.status is updated, the .h files' rules are triggered, but since move-if-change never updates identical outputs they will be triggered every time from then on. You need a separate stamp file to avoid this. Cheers, Ralf